On my laptop Dell Inspiron 5010, operating system windows 7 got crashed and I was not able to restore it. Another problem was that it was running too slow so decided to format it and freshly install CentOS 6.
Below are the steps for installation of CentOS:
1. Created a bootable pen drive using Mac machine (used dd command)
Prerequisite:
Pen drive should have ample space (350 MB for minimal boot media and 4.5 GB for full installation media).I have done minimal installation. It will be formatted before iso image is copied to it.
a. Download your favourite iso image using the url https://www.centos.org/download/ (Latest CentOS) or http://isoredirect.centos.org/centos/6/isos/x86_64/ (Centos 6).
b. Figure out the device of USB stick.
First, list all the disk attached to Mac machine
[code language="text"]
diskutil list
[/code]
The one at the bottom is my USB drive (look at its memory or name to identify the USB stick)
c. Detached USB stick from current accessible filesystem
The USB stick data will be earsed before iso image, therefore if it's file is accessed by user then for dd command resource will keep on waiting. Therefore, it is required to umount pen drive using command below.
[code language="text"]
diskutil unmountDisk /dev/disk2
Unmount of all volumes on disk2 was successful
[/code]
d. Copy the iso image over USB Stick
Lets type in dd command to copy the iso images to USB stick. It may take time but don't terminate the session.
[code language="text"]
sudo dd if=CentOS-6.7-x86_64-minimal.iso of=/dev/disk2
[/code]
For i copied Centos 6 minimal iso image and it took me around 1 min.
2. Make the laptop boot from pen drive.
Go into laptop set up configuration (Press F2) and then select boot tab and then change the 1st boot priority to USB Storage Device. Exit and save configuration.
3. Installing from Pen drive to hard disk
Plug-in the bootable usb in the laptop and start on the machine. The screen will show you the installation step for CentOS.
a. Welcome to CentOS screen choose "Install or upgrade an existing system"
Library installation with start and it will take few minutes.
b. Then choose the language (chosen english). Then type of keyboard (chosen us). Then choose installation method as "Hard Drive"
c. Select Partition screen will show partition on the disk drive holding the CentOS iso image.
d. What type of devices will your installation involve screen show up. I have choose "Basic Storage Device" and press Next button.
e. Now, "Please name this computer. The hostname identifies the computer on network." screen shows up. Didn't touch localhost name. On the screen there is "Configure Network" button also. Just configure network and press next.
f. Next, screen shows Select your nearest city in the timezone (Select your city). And press Next.
g. Next screen show up the root password. Specify it and press next.
h. Next screen show "What type of installation would you like". "Use All Space" chosen (Not selected any checkbox "Encrypt System" or "Review and modify partitioning layout" and press next.
i. Then warning popup message shows up "Writing storage configuration to disk". Press "Write changes to disk" button.Result in formatting the hard drives.
j. The next screen will show up the "Boot loader operating system list" (you can add/delete device). Just press next.
k. The next screen show up with message "The default installation of CentOS is a minimum install. You can optionally to select different set of Software now".Chosen "Minimal" only and press next
Now the "CentOS installation starting" popup message will show up.
Lastly, "Congratulations, your CentOS installation is complete" screen shows up.
Conclusion
In this tutorial, I had written the step followed to install the centOS 7 minimal operating system on Dell machine.
Below are the steps for installation of CentOS:
1. Created a bootable pen drive using Mac machine (used dd command)
Prerequisite:
Pen drive should have ample space (350 MB for minimal boot media and 4.5 GB for full installation media).I have done minimal installation. It will be formatted before iso image is copied to it.
a. Download your favourite iso image using the url https://www.centos.org/download/ (Latest CentOS) or http://isoredirect.centos.org/centos/6/isos/x86_64/ (Centos 6).
b. Figure out the device of USB stick.
First, list all the disk attached to Mac machine
[code language="text"]
diskutil list
[/code]
The one at the bottom is my USB drive (look at its memory or name to identify the USB stick)
c. Detached USB stick from current accessible filesystem
The USB stick data will be earsed before iso image, therefore if it's file is accessed by user then for dd command resource will keep on waiting. Therefore, it is required to umount pen drive using command below.
[code language="text"]
diskutil unmountDisk /dev/disk2
Unmount of all volumes on disk2 was successful
[/code]
d. Copy the iso image over USB Stick
Lets type in dd command to copy the iso images to USB stick. It may take time but don't terminate the session.
[code language="text"]
sudo dd if=CentOS-6.7-x86_64-minimal.iso of=/dev/disk2
[/code]
For i copied Centos 6 minimal iso image and it took me around 1 min.
2. Make the laptop boot from pen drive.
Go into laptop set up configuration (Press F2) and then select boot tab and then change the 1st boot priority to USB Storage Device. Exit and save configuration.
3. Installing from Pen drive to hard disk
Plug-in the bootable usb in the laptop and start on the machine. The screen will show you the installation step for CentOS.
a. Welcome to CentOS screen choose "Install or upgrade an existing system"
Library installation with start and it will take few minutes.
b. Then choose the language (chosen english). Then type of keyboard (chosen us). Then choose installation method as "Hard Drive"
c. Select Partition screen will show partition on the disk drive holding the CentOS iso image.
d. What type of devices will your installation involve screen show up. I have choose "Basic Storage Device" and press Next button.
e. Now, "Please name this computer. The hostname identifies the computer on network." screen shows up. Didn't touch localhost name. On the screen there is "Configure Network" button also. Just configure network and press next.
f. Next, screen shows Select your nearest city in the timezone (Select your city). And press Next.
g. Next screen show up the root password. Specify it and press next.
h. Next screen show "What type of installation would you like". "Use All Space" chosen (Not selected any checkbox "Encrypt System" or "Review and modify partitioning layout" and press next.
i. Then warning popup message shows up "Writing storage configuration to disk". Press "Write changes to disk" button.Result in formatting the hard drives.
j. The next screen will show up the "Boot loader operating system list" (you can add/delete device). Just press next.
k. The next screen show up with message "The default installation of CentOS is a minimum install. You can optionally to select different set of Software now".Chosen "Minimal" only and press next
Now the "CentOS installation starting" popup message will show up.
Lastly, "Congratulations, your CentOS installation is complete" screen shows up.
Conclusion
In this tutorial, I had written the step followed to install the centOS 7 minimal operating system on Dell machine.
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